An exemplary formulation including a specific weight ratio of Atractylodes macrocephala to other certain ingredients surprisingly had an antidiuretic effect which is opposite to what was expected from the common general knowledge. One aspect of such a formulation includes Atractylodes macrocephala； at least one other ingredient that can include at least one of Polyporus umbellatus； Poria cocos； Cinnamomum cassia (twig)； and at least one of Alisma orientale and Alisma plantago-aquatica. The formulation can be formed with a weight ratio of Atractylodes macrocephala being greater than 25% with respect to the at least one other ingredient. These formulations may be useful in a method for the treatment of excessive urination, the method including administering an effective amount of a formulation as described herein to a patent in need thereof.
